A firm consisting of



R. J. G. BLUCKOUSE.

HEATING FURNASE.

APNIC/uma m2o aua?. rem.

1,335,648. Patented Mar. 30, 1926.

4 SMUS mui I,

i?. I. (l. BLOCKUU'SE,

HEMIW FURNACE.

Arwucmwfa man ma?,

Patented Mar. 30, 1920.

4 SHEETS-*SHEET 2.

R. J. G. BLCKUUSE.

HfATiNG FURNC.

APPLICAHUN min ma?. |918.

Patented Mar. 30, 1920.

. lower sections of the UNITED STATES PATENT OFFICE.

acusar .1. e. nLooxousn, or PHILADELPHIA; PENNSYLVANIA,

ntocxousn a co., or PHILADELPHIA,

ASSIGNOR TO ALCORN,

PENNSYLVANIA, A. FIRM CONSISTING 0F JAMES S. ALCORN AND ROBERT J'. G. BLOCKOUSE.

HEATING-FUBNACE Bpeciileation of Letters Patent.

Patented Mar. 30, 1920.

To all 'whom it may concern Be it known that I, ROBERT J. G. BLOCK- oUsn, a sub'ect of the King of Belgium, residing in hiladelphia, Pennsylvania, have invented certain Improvements in He'at' Furnaces, of which the following is a specification. I

One object of my invention is to construct a furnace in which the article to be treated can be intermittently traversed through the furnace and'brought to a predetermined heat.

A further object of the invention is to provide a furnace in which the articles can be brou ht to a predetermined heat through a varying heat in the furnace. l

A still further object of the invention is to provide means for automaticall charg ing the furnace with the articles an for discharging the articles after they have been brought to the heat desired.

These ob'ects I attain vin the following manner, re erence being had to the accompanying drawi in which:

igure 1 is a ongitudmal-sectional view Aon the line 1-1, Fig. 4;

Fi 2 is a sid view, partly in section, on the line 2-,2, Fig. 4;

Fig. 3 is a view of the feed end of the furnace' Fi 4 is a transverse sectional view on the line 5 4, 1;

Fig. 5 1s a etached perspective view illustrating one of the lifters;

Fig. 6 is a detached perspective view illustrating one of the su ports;

Fig. 7 isa sectiona trating one of the li ing lifters;

Fi 8 is a lon 'tudinal sectional view illus rating a modi cation of the invention, and Fig., is a sectional view on the line 9-9,F1g. s.

The base of the machine, in `the present instance, is made of longitudinal I-beams 1 and transverse. I-beams 2 to which are attached upright beams?) carrying the floor beams ,41 of the furnace structure 5 which has bottom late 6, a brick linin 7 and an arched roof) section 8, also of brick. At each side of the furnacestructure `are burner openings 9. Burners are located in these openings and play, inthe present instance, upon granular material in the fire chamber beams and the A ma'or portion of t e heat in the by the beams 2.

prspective view illus-l 10 at each side of the furnace so that the flames pass over the articles within the furnace and heat them to the de ree required. There are a number of t ese burners throughout the length of the furnace so that the temperature can be varied, as desired. In the present instance, the furnace is a double furnace-havin a partition wall 11, but it will be understoo that my invention can be used as a single'furnace as well. At each end 12 of the furnace is an opening 13, one for the entrance of the article to be heated and the other for the discharge of the same. ln front of these openings is a chain door 14, consisting of a series of chains loosely hung from one or more transverse shafts, so that when the article is fed-into the furnace these chains .separate and as the article passes the chains they assume a closed position. This arran ment tends to keep the furnace. xtending longitudinally of the furnace is a shaft 15 mounted in bearings 16 carried Extending parallel with the shaft 15 are two I-beams 18, which are arranged to be raised and lowered by the cams 19 on theshaft A15 and levers 20 pivotally mounted in bearings 21 and 22. On the inner end of each lever is a roller 23 which bears against its particular cam 19, while theY which bears against I-beams 18 so the I-beams are raised and lowered. Secured to the I-beams are lifters 25, which are adapted to guides 26 in the bed plate 6 of the furnace and these lifters, in the present instance, are made in two parts 27 and 28, the part 27 being secured to the I-beains 18, while the part 28, which is detachably secured to the part 27, has a head 29 at its upper end, beveled as shown in Figs. 1 and 5. The guides 30 extend throu h the brick work 7 in the bottom of the gurnace and mounted in these ides is a support 31 for the article being eated. This support is shaped as shown in Fig. 6 and has abeveled portion 31i` at the forward end and a curved stop 32 at the rear end. The head 29 is adapted to work in the recesses 33 in two adjoining supports .31 and is arranged to lift the article over the stop 32 and allow it to roll over the sur- 'face 31BL of the adjoining support until it comes in contact with the stop 32 of another support, so that as the beams 18 are raised and lowered by the cams the article is lifted and allowed to roll forward intermittently' through the entire length of the furnace and the speed at which this movement takes place depends u Jon the speed at which the shaft is driven. he shaft, in the present instance, is driven slowly by a transverse power driven shaft 34, on `which is a worm 35 meshing with a worm wheel 36 on the shaft 15.

In the present instance, the articles to be heated are shell casings, which are cylindrical in form so that they will readily roll from one stop to another. In order to feed these shell casin s, or like articles, i'nto the furnace, I provi e two verticall arranged sliding stops 37 and 438 adapte 39 directly in advance of the feed doors of the furnace. These stops are operated by cams 40, mounted on shafts 4l, adapted to bearings 42 on the frame. These shafts are geared to the main shaft l5 by ears 43 and 44, as clearly shown in Fig. 3. 45, leading into the furnace, is slightly inclined and the shell easings are placed by the operator on this inclined nlatform and come in contact with the stop 37 and, as it is withdrawn by the action of the cams, the other stop 38 is elevated so that each casing passes the first stop and rolls against the second stop, the second casing restin against the first stop as it is elevated, w ile the iirst casing on the de ression of the stop 38, rolle wast the chain oors into the furnace and comes in contact with the stop 32 of the first support 31. Then, as these heads are raised and lowered the shell casings are intermittently fed forward through the furnace.

At the discharge end of the furnace is an inclined latform 46 over which the shell casings regl after leaving the last carrier and the end of this platform 46 is curved u ward, as at 47, so as to `form a stop for tlie casings, and they Ican be moved by any suitable Vmeans from this platform. The plat-- form, in the present instance, is hollow, as shown, and may be either air or water cooled.

The supports 31 are removable so that when they become worn they can be detached and other supports substituted for them and the u'oner sections 28 `having the heads 29, may also lee-removed or a like causer and re newed. 4

In the present instance. in the double fur* nace shown the cams are so set that one set. of cams is-elevating one beam 18, while the other set of cams is in such position as to allow the other beams to be lowered. This arrangement relieves the shaft from the strain of lifting all of the shells in the furnace at the same time. By adjust' ,the burners, the heat in the furnace ,can be gu' lated at will so as to bring the shell casings,

to guides y he platform" or other articles, gradually to the proper heat, and as it may be necessary to bring certain articles to onelaheat and other ar ticles to another heat this heat can be readily accomplshed by the arrangements above described.

In Figs. 7 and 8, I have illustrated a modification of the invention, in whichthere are two cam shafts 1.5 driven through worm and worm gearing from a transverse shaft 35, which, in turn, is driven by worm and worm gearing from a shaft 48 and, in `this instance, there is a cam 19 for each lifter 25, which is made in substantially the same manner as the lifter shown in Figs. 2 and 4. The means for feeding the shells to the furnace is ubstantially the same as that previously ascribed, only the cams 40* are mounted directly on the cam shafts 15.

The operation of the furnace is as follows: Referring to Fi s. 1 to 4 inclusive, the furnace is heated to t e desired degree, one portion of the furnace being brought to a greater heat than another portion. The shell casings to bc heated are mounted on' the platform 45 and the mechanism is set in motion and the casings are automatically fed,

' one at a' time, into the furnace past the inlet chain doors by means of the reciprocating sto s 37 and 38, and they are intermittently fe forward on the reciprocation of the carriers 25, which elevate the casings so that they will be free of the stops 32 and will roll over the surface 31 of the sup ort to the next stop, and so on, intermittent y throughout the length of the furnace. 'he shells pass the chain door at the discharge end of the furnace and onto the platform 46.

I claim: f

1. The combination in a heating furnace, of a furnace structure, a series o supports therein having stops; and a reciprocating carrier arranged to elevate the articles bein heated above the stops Aof the supports, alg` lowing the articles to roll over the surface of the supports and against the next sto so that the articles .being heated are move intermittently through the furnace.

2. The combination of a heating furnace;

a series of supports therein mountedl in4 e 115 fixed position and arranged one in advance of the other throu hout the length of the furnace, each of sai supports having an inclined surface and a stop; a reciprocating lifter arranged at each stop; means for rais- 120 ing the 4lifter so as to elevate the article and to allow it to roll over the stop of one support and against the stop of another` support; and means for feeding articles one at atme, into thef furnace, actuated 1n time 125 with the means for feeding articles through the furnace.

B. The combination in a. heatin :furnace for shells and like cylindrical cb]ects,o f a furnace structure; a series 'of supportsfav` leo ranged in advance of the other throughout the length of the furnace, each support having a beveled face and a stop; a series of lifters having heads beveled in the same direction as the bevel of the supports and arranged to elevate the shells above the stops,

allowing them to roll over the inclined sur` face of a support to the next stop.

4. The combination in a heating furnace for shells and like articles, of a furnace structure; two series of supports arranged throughout the length of the furnace, one series paralleling the other series; a series of lifters for each series of supports, said lifters having their upper surface beveled in the same direction as the bevel of the supports; and a central cam shaft havin cams thereon for actuating the lifters 0% both series.

5. The combination in agheating furnace, of a heating chamber; two sets o sup orts therein, each support having an inc ined surface and a stop; two longitudinal beams; lifters mounted on the beams and havi heads shaped to lift the shell casings, an like articles, above the stops, allowing each article to roll over the inclined surface of the next stop; `a shaft parallel with the beams; cams on the shaft; and levers actuated by the cams and arranged to lift the beams and their lifters.

6. The combination in a heating furnace,

of a furnace structure having a series of reports movable su pports therein arranged throughout the length of the furnace, said supports having an inclined surface and a stop; lifters at each support; means for raising the lifters so as to lift each article over a stop, allowing it to roll over the support to the next sto two reciprocating stops at the feed end o the furnace, one arranged 4in advance of the other; a shaft; cams on the shaft for actuatin the stops so that when one is raised the ot er is lowered in order to feed the shell casings, or like articles, into the furnace, oneat a time.

7. The combination in a heatincg furnace of a bottom plate; a series of gui es located in the bottom plate; a lining for the interior of the furnace; a series of sup rts mounted on the upper ends of the guides, said su detachable so that they can e renewed,` e upper surface of each support being beveled at one end and having a. euwed sto at the other end; liftrs adapted "to the gui es and havin heads with beveled pper surfaces arran e to lift the articles being heated above t e stops so that they will roll over the inclinedsurface of the supports, said lfters being made in two parte secured together; a longitudinal beam to which the lower part 1s secured; a cam shaft; and 'cams for elevating the beam and the lifters carried thereb In Vwitness whereof I a x m si ROBERT J. G. BLgC ature.

OUSE. 

